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BIO-FILTRATION STEP USE IN DRINKING WATER TREATMENT

Journal: Scientific Bulletin Series F Biotechnologies (Vol.18, No. 1)

Publication Date:

Authors : ; ; ; ; ;

Page : 196-203

Keywords : bio-filtration; electrochemical treatment; multiple oxidants; ammonia; drinking water;

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Abstract

The paper presents a case study, for the drinking water plants which involve a bio-filtration step used to reduce simultaneously, certain pollutants (iron, manganese, ammonia) in a single stage filtration. The bio-filtration step, with microorganisms multimedia doped layers was compared with a classic filtration step. The new approach shows the advantage of: higher yields of water pollutants reduction at low specific energy consumption. The bio-filtration process is preceded by an electrochemical pre-treatment whose role is: oxidation of dissolved substances from water, turn non biodegradable organic substances in biodegradable, favour coagulation and flocculation processes, bio-filtration process improvement. In order to optimize the process, was developed and validated a mathematical model of biofiltration process.

Last modified: 2015-06-03 16:47:35